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A survey conducted at Chicago Public Schools (CPS) involving high school students on whether they had...

A survey conducted at Chicago Public Schools (CPS) involving high school students on whether they had participated in binged drinking during the past month. Binge drinking was defined as 5 or more drinks in a row on one or more of the past 30 days.

Number who identified as having participated in Binge Drinking.

72

Total participants

567

a. From the sample data is there evidence that the proportion of students who participate in binge drinking is greater than 10%? Write a null and alternative hypothesis and perform an appropriate significance test using

b. Construct a 90% Confidence Interval for the population proportion. Does it support the same conclusion as in part a? Explain.

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orchestra answered 2 years ago
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